CVE-2026-98453
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: close handle after create-context parsing failure SMB2_open() accounts a successful CREATE response as a remote open before parsing its create contexts. If smb2_parse_contexts() rejects malformed context data, SMB2_open() returns without closing the handle, leaving the server-side handle open and num_remote_opens elevated. Close the handle after a post-CREATE context parsing failure so the error path releases the remote resource and balances the open count.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-10-18 16:16:55.647000
Last modified
2026-10-30 13:21:14.240000
View original CVE JSON
{
"id": "CVE-2026-98453",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-10-18T16:16:55.647",
"lastModified": "2026-10-30T13:21:14.240",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: close handle after create-context parsing failure\n\nSMB2_open() accounts a successful CREATE response as a remote open before\nparsing its create contexts. If smb2_parse_contexts() rejects malformed\ncontext data, SMB2_open() returns without closing the handle, leaving the\nserver-side handle open and num_remote_opens elevated.\n\nClose the handle after a post-CREATE context parsing failure so the error\npath releases the remote resource and balances the open count."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"fs/smb/client/smb2pdu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "13fb0fc4917621f3dfa285a27eaf7151d770b5e5",
"lessThan": "d4c05b5cb0a3132453e36a300d45de44bf6783c4",
"versionType": "git",
"status": "affected"
},
{
"version": "890bc4fac3c0973a49cac35f634579bebba7fe48",
"lessThan": "ee61f1dc516d97afa79908140d0a8c556c2fe90c",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "007b87f6a7c38959ed79cf7d3fd7b3b4eb5f67fd",
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{
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{
"version": "6726429c18c62dbf5e96ebbd522f262e016553fb",
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},
{
"version": "5.10.211",
"lessThan": "5.10.273",
"versionType": "semver",
"status": "affected"
},
{
"version": "5.15.150",
"lessThan": "5.15.224",
"versionType": "semver",
"status": "affected"
},
{
"version": "6.1.79",
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"status": "affected"
},
{
"version": "6.6.8",
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"versionType": "semver",
"status": "affected"
},
{
"version": "5.4.277",
"lessThan": "5.5",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"fs/smb/client/smb2pdu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.7",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.273",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.224",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.113",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.56",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.9",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/007b87f6a7c38959ed79cf7d3fd7b3b4eb5f67fd",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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{
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},
{
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{
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{
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{
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]
}